The Effect of Argon and Carbon Ion after Heavy Ion Beam Irradiation of Toraja Local Rice

Abstract

Abstract Red rice is not popular to be cultivated extensively by farmers because of long harvest period, which takes between 6 to 7 months before harvested. Therefore, there is a need to create a diversity of morphological characters, as the character for selection, especially related to the time of harvest. One method is through breeding mutation by irradiation using ion beam. The aim of this study is to evaluate early maturing lines after irradiation using ion beam in Toraja local rice. The experiment was conducted at Gowa and Enrekang Regency, South Sulawesi using Red local Toraja rice variety (Pare Lea) treated with ion beam irradiation of Argon ion (10 Gy) and Carbon (150 Gy). The result showed that Carbon ion irradiation treatment produced a higher number of mutants than argon ion irradiation at both locations. Secondly, carbon ion has a greater number of frequencies in the criteria of early maturing compared to Argon ion and harvesting day of red rice in the highlands is comparatively still longer than in the lowlands.

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